Tankless Water Heater Installation

The cause is often simple. For electric models, check the circuit breaker to see if it’s tripped. For gas models, make sure the gas valve is fully on and that propane or natural gas is being supplied to the unit. Both types have a minimum water flow rate; if your hot water demand is lower than that threshold, the unit won’t produce hot water. Open another hot tap for a minute and see if the warm water starts flowing. If these steps don’t work, call your local Mr. Rooter Plumbing for assistance.

A drawback of tankless water heaters is the potential for the so-called “cold water sandwich.” If your water goes back and forth between hot and cold, there are several potential causes, including a damaged flow sensor, a dirty water filter, or a gas line that’s too small for the unit. Call Mr. Rooter Plumbing to diagnose and resolve the problem.

Tankless water heaters offer several advantages over traditional models, including better energy efficiency, endless access to hot water, and a much longer expected lifespan. However, tankless models come with higher upfront costs and are more limited in how much hot water they can produce per minute.

Many homeowners can complete routine cleaning and inspections on their tankless water heaters. Here are three tasks to get you started:

• Flush your tankless water heater every year. If your water is especially hard, protect your unit from mineral buildup by performing more frequent flushes. Your owner’s manual will walk you through the process for your specific unit.
• If your water heater has an air filter or cold-water inlet filter, check your owner’s manual for instructions to clean these filters.
• Wipe the exterior of your tankless water heater with a damp cloth. (Do not wipe the fan blades, heat exchanger, or burner.) Cleaning first will allow you to perform a better visual inspection of the water heater.

If you see signs of rust or corrosion on the unit, call your local Mr. Rooter Plumbing for help.